Browsing by Author "Zanatta, Giuseppe Schmuck"
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- Optimal power flow in electrical networks under curtailment scenariosPublication . Zanatta, Giuseppe Schmuck; Ferreira, Ângela P.; Netto, Ulisses CheminIn the context of the global energy transition, the utilization of renewable energies has experienced a significant rise over the past decade. However, the intermittent nature of renewable generators, particularly wind and photovoltaic sources, presents a considerable operational challenge for electrical system operators. Because of this, ensuring minimal energy curtailment rates becomes an important concern, and the implementation of energy storage systems, specifically Pumped Hydro Storage (PHS), emerges as a promising solution. This research focuses on proposing a comprehensive model and operation framework for PHS and subsequently undertaking an in-depth analysis of the impact of integrating this PHS system into an electrical network. The analysis employs an optimal power flow formulation that is designed to minimize transmission losses while complying with operational constraints and curtailment requirements imposed by European legislation. The findings of this study indicate that the implementation of the PHS system results in a substantial reduction in Renewable Energy Curtailment (REC), with improvements reaching up to 35.9%. Moreover, the integration of PHS also leads to a corresponding decrease in transmission losses of up to 2.21% for yearly simulations. These results highlight the effectiveness of incorporating PHS as a viable means of mitigating curtailment and transmission losses within the renewable energy framework.